Proprietary package detector for arch-based distros. Compares your installed packages against Parabola's package blacklist and then prints your Stallman Freedom Index (free/total).
There are empty lines in blacklist.txt. Added a check in main.py not to break because of them.
If the absolutely-proprietary folder already exists in /tmp, the git clone will fail. I added a check to see if it exists and then pull instead of cloning. Written it in a shell script for cleaner code.
Also re-added the --needed option to pacman. There's no need to reinstall an up-to-date version of Python.